Sash-fastener



(No Model!) v R. M. HUTGHINSON.

SASH I'A'STENEB,

w. n m e UNITED STATES I PATENT OFFICE.

ROBERT MALOOLMSON 'HUTOHINSON, OF BOSTON, MASSACHUSETTS.

- SASH-I-LASTENER.

SPECIFICATION forming part of Letters Patent No. 352,189. dated November9, 1886.

Application filed September 30, 1886. Serial No. 214,966. (No inodelJ Toall whom it may concern.-

Be it known that I, ROBERT MALOOLMSON HUTOHINSON, of Boston, in thecounty of Suffolk, of the Commonwealth of Massachusetts, have invented anew and useful Improvement in Window-Sash Fastenings; and I do herebydeclare the same to be described in the follow- .ingspecification andrepresented in the accompanying drawings, of which Figure l is a frontelevation of a railwaycar window frame and sash with my inventionapplied thereto. Fig- 2 is a horizontal section taken through thespring-latch and the parts adjacent. Fig. 3 is a transverse section ofthe window-frame, showing the grooved and notched bar and itsarrangement therein. Fig. 4 is a front elevation; Fig. 5 a front endview, and Fig. 6 a top view, of the spring-latch and its carrier andoperative spring. Fig. 7 is a front view of the bar provided with thegroove and the notches opening out thereof, as explained.

The nature of my invention'is defined in the claim hereinafterpresented.

In carrying out my improvement I insert and fix in the rear part of oneof the vertical grooves g of the window-frame F, in which the sash A isplaced and is movable vertically, a metallic bar, B, which haslengthwise in it a groove, a, and a series of angular notches,

b b b, the latter being arranged at equal distances apart and openingout of the groove,

I and formed as represented.

Within the sash I insert the spring-latch O and its carrier D, so thatsuch latch at its front end may extend into one of the said notches.This latch is a lever arranged in and fulcrumed to the carrier D, whichis provided with a spring, E, to force the latch into the notch. Thecarrier at its front has a slot, 0,

The latch at its rear part is bent at about a right angle, and in frontof the posterior end ofthe latch is a small ball or button, d,which isheld in place by a circular cap, e, screwed or fastened to the sash, thewhole being so as to enable a person, by pressing his finger on the ballor button, to force it inward and move the latch out of engagement withone of the notches, or from it into the groove.

On raising the sash the lat-ch will slip from one into the other of thenotches in succession, so as to hold the sash at any desired altitudewithin the range of its motion. On pressing the ball or button in andholding the latch out of engagement with the notches the sash may bedepressed, the latch at the time moving in the groove. i

The above-describedsash-fastening is speoially applicable to and usefulfor railway-car windows, it being very simple and efficient in itsoperation, the manner of operating it being readily suggestive to apassenger. With it a sash cannot easily accidentally fall on the head orarm of a person, to the injury thereof.

I claim- The combination of the bar B, fixed in the windowframe F, andprovided with the groove a, and the series of notches b, arranged, asrepresented, with the spring-latch O-and'its carrier D, and with theball or button at and its confining-cap 6, arranged with and applied tothe sash A, substantially as set forth.

ROBERT MALCOLMSOQI uuroulx'sor. l

Witnesses:

R. H. EDDY, MAX BAOHERT.

